const express = require('express');
const session = require('express-session');
const path = require('path');
const favicon = require('serve-favicon');
const logger = require('morgan');
const cookieParser = require('cookie-parser');
const bodyParser = require('body-parser');
const RedisStore = require('connect-redis')(session);
const busboy = require('connect-busboy');
const compress = require('compression');
const bytes = require('bytes');

const router = require('./routes/index');
const config = require('./config');

const app = express();
const cors = require('cors');

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

// app.use(cors());//跨域

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cors({
    origin:["http://47.93.192.82", "http://47.93.192.82:80", "http://127.0.0.1","http://localhost","http://127.0.0.1:8080","http://localhost:8080"],
    credentials:true
}));
app.use(require('cookie-parser')(config.session_secret));
app.use(compress());
app.use(session({
    secret: config.session_secret,
    store: new RedisStore({
        port: config.redis_port,
        host: config.redis_host,
        db: config.redis_db,
        pass: config.redis_password,
    }),
    resave:false,                //每次请求是否需要重新设置cookie
    saveUninitialized:true      //无论是否有cookie,设置标记connect.sid可改名
}));

app.use(busboy({
    limits: {
        fileSize: bytes(config.file_limit)
    }
}));

app.use(express.static(path.join(__dirname, 'public')));

app.use(router);
// app.use('/users', users);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
